4D v16.3

SET FIELD VALUE NULL

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4D v16.3
SQL
SET FIELD VALUE NULL

SET FIELD VALUE NULL 


 

SET FIELD VALUE NULL ( aField ) 
Parameter Type   Description
aField  Field in Field where NULL value is to be attributed

The SET FIELD VALUE NULL command assigns the NULL value to the field designated by the aField parameter.

The NULL value is used by the SQL kernel of 4D. For more information, please refer to the 4D SQL Reference manual.

Notes:

  • It is possible to disallow the Null value for 4D fields at the Structure editor level (see the Design Reference manual).
  • SET FIELD VALUE NULL erases the contents of object fields.



See also 

Is field value Null

 
PROPERTIES 

Product: 4D
Theme: SQL
Number: 965

This command can be run in preemptive processes

 
HISTORY 

Created: 4D v11 SQL

 
ARTICLE USAGE

4D Language Reference ( 4D v16)
4D Language Reference ( 4D v16.1)
4D Language Reference ( 4D v16.2)
4D Language Reference ( 4D v16.3)